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- Path: zippy.dct.ac.uk!str-ccsun!not-for-mail
- Newsgroups: comp.sys.amiga.hardware
- Subject: "Generic" IDE CDRom works on A1200
- Message-ID: <4l8jga$43d@vulture.dmem.strath.ac.uk>
- From: nbc@vulture.dmem.strath.ac.uk (Neil Brendan Clark)
- Date: 19 Apr 1996 18:45:46 +0100
- Organization: University of Strathclyde
- NNTP-Posting-Host: vulture.dmem.strath.ac.uk
-
- In reply to my posting of a few days ago (and someone else who posted a
- similar query for an A4000) asking if it was possible to use a "generic"
- IDE/ATAPI/EIDE (whatever!) on the standard A1200 IDE interface, I am happy
- to report that it does in fact work.
-
- Warning: Do not read the text below if you faint at the thought of invalidating
- your warranty. I am not repsonsible for any consequences of anyone attempting
- the act or something based on the act described below.
-
- I managed to obtain a Phillips 4x IDE CDRom from my local computer shop
- a few days ago, and in addition to this acquired a 2-way power splitter
- cable. My main worry at first was that the standard A1200 power supply
- would not have enough juice to power my setup with the additional burden
- of a CDRom, especially as I already have a 540M 3.5" hard disk and a Blizzard
- III 50Mhz 68030/MMU/FPU with 16M of RAM.
-
- Anyway, I opened the case and replaced the one way IDE cable with a two way
- version I already had - in fact I had to "clip" it onto the 2.5"->3.5"
- adapter. The power splitter was then installed to provide a power input
- for both the CDRom and the 3.5" hard disk. Luckily both cables were long enough
- to protrude a reasonable distance from the side of the A1200's case, allowing
- the CDRom to sit alongside the A1200.
-
- Next I powered on the computer, and lo and behold, everything came up fine.
- The CDRom seemed to initialize itself properly and I was able to play
- audio CDs from it while siultaneously performing a CPU and disk intensive
- task on the A1200 with the purpose of stressing the power supply. For those
- interested, this task was a total recompile of the NetBSD kernel, which
- is by no means a lightweight effort...
-
- So far so good. Time for my next fear: that there would be no driver available
- to control the CDRom. I had a few from Aminet, but the most promising
- looking effort only had docs in Italian. Oh dear. So I tried the others
- first, to no avail. After this, I decided to call it a night feeling ever
- so slightly crushed. :-(
-
- However, gumption prevailed, and I decided to try and interpret the Italian
- documentation with no knowledge whatsoever of Italian. Thanks to a pretty
- good Installer script with the archive and a lot of head-scratching, I
- finally got it figured out. A click here, a click there, and a few seconds
- later I was able to access the CDRom! The world then opened up in front
- of me whilst I envisaged the possibilities inherent etc...
-
- Now all that remains is to cut out a small hole in the left hand side of
- the A1200 case so that it will close properly again.
-
- OK, if you have read this far you may rightly ask "So what? I can buy a CDRom
- for my A1200 without all the hassle you put yourself though." Well, my friend,
- the answer, as is all too often the case these days, is simple economics:
-
- Phillips 4x IDE CDRom: 60 UKP inc. VAT
- A1200Atapi_Ita.lha: ~15 UKP to register, including CD32 emualtion
-
- So if you are honest and intend to register the Atapi driver (as I do) then
- the total cost is about 75 UKP, which IMHO is very good. If you are either
- dishonest or have some other method of driving the CDRom (I think NetBSD
- may be able to do this) then the total cost is 60 UKP! A snip, I'm sure
- you'll agree.
-
- So far I've had no problems with the CDRom, and the power issue seems OK,
- although I'll have to keep a close eye on it for a while before I'm 100%
- sure. OK, so I have an internal CDRom sitting on my disk, but it's enclosed
- in metal anyway, and I can live with it. Hey, whaddaya expect for 60 UKP,
- good looks? ;-)
-
- If anyone has any questions, give me a email...
-
- --
- Neil Clark
- Transparent Telepresence Group
- <http://telepresence.dmem.strath.ac.uk/>
-